Cooling or refrigerating apparatus



c. L. ANDRIRC. ROGERS ANR w. W. BROWN.t

COOLING 0R REFBIGERATING APPARATUS. APPLlcATloN FILED sEPT.18. 1919.

.y Pateted Apr.`25, 1922 R SHEETS-SHEET.

c. L. AND M. c. RQGERS yANJJ Yls/,RowL

(OOL'NG 0R REFRIGERATING APPARATUS.

I APPL|CATION FILED SEPT. 1B, 1919,

. Patented, M1225,A 19.22V -,Zg l f `swims-SHEET 2. l l f C. L. AND Nl.C. ROGERS AND W. W.. BROWN.

COOLING 0R REFRIGERATING APPARATUS.

APPLICATION FlLED-SEPTJB, 1919.

Patented Apr. 25, 1922.`

`C. L. AND M. C.. ROGERS AND W. W. BROWN. COOLING 0R REFRIGERATINGAPPARATUS.

APPLICATION FILED SEPT. 1B, 1919.

Patemed Apr. 25,v 1922.

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c. L'. AND M. c. ROGERS AND WQW. BROWN. COOLING 0R REFRIGERATINGAPPARATUS; APPLICATION FILED S-EPT. 18, |919.

1,414,209. A Patented Apr. 25, 1922 A BEE SHEET s.

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yprovide a cooling and ventilating apparatus UNITED STATES PATENTOFFICE.

CHARLES LEON ROGERS AND MANLY CIAPIMAN ROG-ERS, OF WEEHAWKEN, NEW `lJERSEY, AND WILLARD W. BROWN OF CHESTERTOWN, NEW.YORK.

COOLING OR. REERl1anIaa'rINeArraRArUs.J

To all whom it may concern: v

. Be it known that we CHARLES LEON ROGERS and MANLY CHAPMAN ROGERS, bothof VVeehawken, in the county of Hudson and State of New Jersey, andVVILLARD W. BROWN, of Chestertown, in the county of Warren and State ofNew York,.citizen s of the United States, have invented new and usefulImprovements in Cooling or Refrigerating Apparatus, of which thefollowing is a specification. 1

This invention relates to improvements in cooling and Ventilatingapparatus adapted to be installed in buildings so that a constant supplyof cool air particularly inthe summer may be supplied to the roomseconomically and efficiently. The invention is also applicable torefrigerating plants for the cold storage of provisions and otherarticles.

One of the objects of the invention is to 5 which may be readilyconnectedto the heat` ing apparatus employed in the winter and thusutilize the \pipes of the heating apparatus for conveying cooled,cleaned and purified air to the various rooms of af building. Anotherobject is to provide a cooling and Ventilating apparatus employing amethod of projecting and diffusing through the re` frigerated fluid inthe cooling tank a large number of relatively small streams of air. Thisis an important feature and improves ment, since by this method Iair ismore widely and equally diffused throughout the refrigers ated fluid andhence more uniformly cooled than in apparatus employing different meth`ods, whileA at the same time the air is more efiiciently cleaned andthereby particles of dust or other foreign matter are more readilyremoved. y y

Another object is to provide means for equalizing the distribution ofthe air to'the v refrigerated fluid, as well as to the outlet of thecoolingtank.

Another object is to provide in each room one or more air deliveryterminals provided with means for diffusing and distributing the cooledair laterally in all directions, .so as to thereby insure a generaldistribution of cooled air throughout the room. Thermostatic means maybe provided if desired, for automatically closing a control valve whenthe temperature of the room falls to a predetermined degree, and againopening the Specification of Letters Patent. Patentevd Apr.'25, 1922.Application led September 18, 1919. Serial No. 324,390.

valve when the temperature rises to a predetermined degree.

Another object is to prising baflie plates, jacent tothe outlet, toprevent the passage of spray or moisture, as well as toequalize thedistributionlof the air from the tank to the outlet.

Another Object is t'o provide a layer of oil on' the surface oftherefrigerated water or brlne in the cooling tank so as to reduce thehumidity of the cooled air as it passes into#` vthe space above thewater, brine zor otherI suitable refrigeratingfluid .in the Vtank andthence toward the outlet. The quantity of molsture so taken out'I of theair may be varied by the amount of oil used.

Another object is to provide means for different rooms vof a building,thus using the air over again and returning it to the rooms the outsideatmosphere.

. provide means, com- 1n the cooling tank ad- Y supplying air tothecooling tank from the In the Vaccompanying drawin s whichI illustratecertain embodiments of t tio'nt Fig. 1 is a diagrammatic view invertical section show-ing theapparatus installed in a building;

Fig. 2 is, an enlarged sectionof one ofthe air delivery terminals;

Fig. 3 is a plan view of one form of air cooling or lrefrigeratingg;apparatus;

Fig. 4 is a fragmentary section on line 4-4 of Fig. 3;

Fig. 5 is a section on line 5-5 of Fig. 3;

e inven- Fig. 6 1s a sider elevation of the apparatus, i

partly in section; v

' Fig. 7 isa section and plan View, partly broken away, on line 7 7 ofFig. 6;

Fig. 8 is a plan ViewV of one of the air distributors; f

Fig. 9 is a section on". line 9 9 of Fig. 8; Fig. 10 is an enlarged sideelevation of one of the distributor nozzles;

Fig. 1l isa side elevation of another form of'alr cooling orrefrigerating apparatus containing individual cooling tanks;

Fig. l2 is a central vertical section apparatus shown in Fig. 11;

Fig. 13 isa fragmentary section on line 13.- 13 of Fig.l11;

of the lengthwise of one of the individual cooling tanks; and f Fig. l5is a perspective View of one of said' individual tanks.

Referring first to Fig. l which illustrates an installation 'as a whole,A, B, and U represent respectively the basement floor and two -upperioors of a building. The air after being 'chilled in the air cooling orrefrigerating apparatus D, which is pret erably located in the basement,is drawn through pipe d by exhaust pump E, and thence delivered throughpipe e to a reservoir F. It will beunderstood that if preferred, the airmay be forced through the cooling `apparatus by a pressure pumpinl'stead of by an exhaust pump. From reservoir F the air passes upwardthrough pipe f from which it is distributed to the several apartments orchambers to be cooled.

For example, on the first Hoor B, a branch pipe g leads from pipe f to adelivery terminal G, which is preferably located on the ceiling or atsome other high point in the room, from` which the cold air having atendency to settle 'will be distributed throughout the room.

The delivery terminal G as herein shown comprises a cup-like member g (Fig. 2) secured to the end of the pipe g and adapted to deiect the airissuing from pipe g upward, and a canopyv g2 surrounding the deliveryend of pipe g and adapted to deflect the air from cup g laterally in alldirectioiis, thus insuring a general distribu tion of the cold airthroughout the room. It will be understood that this is but one of manyforms of delivery terminals suitable for our purpose. A similar deliverypipe g and terminal may be provided for each chamber to be cooled. Thepipe f may be .the steam riser pipe of any ordinary steam heatingsystem. VThe steam supply pipe is indicated atJL and when the aircooling apparatus is in operationV the steam pipe la. will be cut off byvalve i. Similarly when the steam heating system is in operation thecold air connections will be cut olf by the valve j controlling pipe fand 'valves 7c, controlling pipes R, R, represent ordinaryl steamradiators,

` controlled at both ends by valves as usual,

and fm. represents the return pipe, con.

nected to the usual return steam pipe n of the steam heating system, andto the return branch o of the cooling apparatus lead; ing to the intakeof the cooling or refrigerating apparatus D. Valves@ and g, controlrespectively the return air pipe 0 and the return steam pipe n.

H, H, represent air receiving funnels of any approved design, connectedto the return pipem in the several chambers to be cooled.

"wall of the tank.

Thus the air, cooled in cooling apparatus D, is delivered by pump E intoreservoir F and thence through pipes f and g to the chamber or chambersto be cooled. The air is supplied to cooler D from the several chambersthrough funnels H and return pipe m, o. If. it is not desired to takethe air from the chamber and use it over again, the intake'of the coolerD may be supv plied through pipe 0 which communicates with the outsideatmosphere. In this case the funnels H, and the pipe o might be omitted.Pipe 0 is controlled by valve u.

The pump E may be operated by any suitable source of power, as by steamthrough pipe s. The steam supply, and consequently the action of thepump, may be automatically regulated by a governor t of any approvedform, which is connected to and controlled by the pressure of air inreservoir F, so that when the pressure in F reaches a predetermineddegree the pump will automatically be stopped or slowed down. It willalso be advisable to equip the tank F with a safety valve of anysuitable type, and with a drain cock fw through which water ofcondensation may be drawn olf.

If desired each cold air supply branch g may be provided with athermostatic con-- trol valve a2 adapted to close when the temperatureof the air in the room falls to a predetermined degree, and again toopen when the temperature rises to a predetermined degree. A Referringnow to the air cooling or refrigerating apparatus shown in Figs. 3 to l0inclusive; 2O represents a tank or casing,

vin the bottom of which are a series of hollow air distributor heads 21.Any number vof such distributor heads may be used according to the sizeand capacity of the apparatus.'

Each distributor head 2l is provided with a large number of relativelysmall air delivery openings 22 in its top wall, to which are fittednozzles 23. The size and number of the holes and nozzles will bedetermined by capacity of the apparatus. The bottom walls 240i? eachdistributor head incline or converge toward the top wall from each endtoward the center thus reducing the capacity from the intake opening ateach end toward the center and equalizing the distribution of the air tothe several delivery nozzles 23.

Each distributor 2l is supplied with air at each end by a pipe 25outside of tanlc 20, connected to the end of the distributor by a pipefitting 26, which extends through the All of the air supply pipes 25 oneach side of the tank are connected to a common header or suitablyconstructed manifold 27 into which air passes from pipe 0 or pipe o. Toequalize the distribution of the air to the several pipes 25 the header27 may have a number of pasthe drawings) between the intake 29,connected to the air supply o, or Q and the header proper 27. Evendistribution of air to yheader 27 may be further insured by baliies 30(Fig. 6).

The tank 20 is partly filled with brine., water or other suitablerefrigerating fluid, W (Fig.- 5). Coils of refrigerating pipes 31running through the fluid W maintain the temperature of the fluid at thedesired degree and are connected to a'. circulating system for ammoniaor other suitable re frigerating medium by valve controlled pipes 32and'33.' The inlet'for the brine or other vrefrigerating fluid is shownat 34 and the outlet at 35. 4

A layer of oil- O (.F ig. 5) is maintained on top of the` fluid W, andis introduced into the tank through inlet 36. A brine try cock 34a andan oil' try cock 36a serve tov in- 'dicate when the brine and oil havereached parts of the tank. The header 38 is provided with a number ofoutlet passages or branches 39 (three being herein shown) lead.-

ing to a single outlet passage 40 to :which the suction pipe d isconnected. Baffie plates 41 .opposite the passages through pipes 39prevent the passage vof spray or free moisture' into the branches 39 andalso aid in equalizing the distribution of the air from all parts of thetank to the outlet passage 40.

The operation of the apparatus is as follow s: The brine or water W iscooled to the desired temperature by the refrigerating coils 31. Thetemperature may be determined by a thermometer T (-Fig. 6) connected totank 20 in a well known manner. Ex-

- haust pump E is `started and exhausts air formly over the lower art'ofthetank. `The ymi .water W, by which it is cooled on its from the top'of tank 20. As the distributor heads 21 are open to the atmospherethrough pipes o or o", header 27 and branches 25, air

will enter the tank by' reason of the difer' ence in pressure, throughdistributor nozzles 23, which are disposed substantially uni- Acooled asalready described. Athermometer Y (Fig. 11) in the air intake serves toindicate the temperature of the incoming air,

while a thermometer Z (Fig. l) attached to the reservoir F indicates thetemperature of the cooled air, and a suitable vacuum'gauge is insertedin the airoutlet from the cooling tank.

In the modification shown in Figs. 11 to 15.. the tank 20, the outletpipes 37, header 38, branches 39, outlet passage 40, and baille plates41, may be the same asin the form of apparatus first described. Thedistributor heads 21 may also .be substantially the same as before, butinstead of delivering into a single body of brine or other refrigeratingfluid in tank 20, each distributor head 21 delivers into an individualtank orrunit 42. A distributor head 21 forms the bottom of eachindividual tank 42, and the several individual tanks 42 are arrangedside by side with spaces between so that the brine W or otherrefrigerating fluid may circulate around them. By using individual tanksthe air may be cooled by passing through pure clean water and oil,,which is chilled by the surrounding body of brine or otherrefrigerating fluid in the main tank.

" A refrigerating coil 43, connected with an ammonia or otherrefrigerating system, ex-

tends through the fluid W and around and between the several individualtanks 42.

Water or'other refrigerating fluid is delivered to the individual tanks42 through the distributor heads 21 from a pipe 44, which is connected.bytbranches to one end ofeach of the distributor heads 21. A threeposition valve 45 controls supply`pipe 46,

through which Water is supplied to pipe 44 and thence to theindividual'tanks when valve 45 is open to pipe 46. Valve 45 also ioncontrols outlet pipe 47 for emptying the individual tanks; and when thetanks are filled and in operation valve 45 is closed to both pipes 46and 47.

The inlet pipes to the several individual tanks leading from pipe 44,are also connected by the branches 25 to the head 27 as in the otherform of apparatus.

Qil is supplied to the upper part of each individual tank from'a pipe 48controlled by suitable valve 49, while a water try cock 46" and an oiltry cock v49a indicate the'proper `levels reached by the water and. oil.Eachvtank 42 has baffle plates 50 near its top, in-

clined downward from the walls of the ytank to arrest any spray or freemoisture which gets past the layer of oil, and allows it to run or dripback into the tan-k. Each tank 42 has a common air and water inlet 51and 'an oil inlet 52. The tank 2() is also provided with a Water gauge53 of any suitable type.

The operation of' this form of apparatus is substantially similar to theother. Air entering the bottom of individual tanks 42 from thedistributor heads 21 under the influence of atmospheric pressure,bubbles up through the Water in said tanks, is chilled thereby and driedby the layer of oil and by the -baflle plates 42, and thence is drawnfrom the top of tank 20 by the exhaust pump and delivered to thechambers to be cooled. The brine or other refrigerating medium in tank20 is cooled by the refrigeratingk coil 43, and in turn cools thecontents of the individual tanks 42 which it bathes.

We claim:

l. An air cooling apparatus comprising a tank provided with arefrigerated fluid, means for projecting through the said fluid aplurality of relatively small streams of air, and means comprising animperforate surface for equalizing the distribution of the air to thesaid refrigerated fluid.

2. An air cooling apparatus comprising a tank provided with means foradmitting a refrigerating fluid thereto, means for admitting oil to saidtank whereby to provide a layer of oil above the refrigerating fluidcontained therein, and means for projecting through the said fluid andoil a plurality of relatively small streams of air.

3. .An air cooling apparatus comprising a tank provided with means foradmitting a refrigerating fluid thereto, means for admitting oil to saidtank whereby to provide a layer of oil above the refrigerating fluidcontained therein, and for projecting through the said fluid and oil aplurality of relatively small streams of air, and means for equalizingthe distribiition of the air to the said refrigerated fluid.

4. A cooling apparatus comprising a tank having a plurality of airoutlets distributed over its upper portion and leading to a commondischarge passage, means for admitting refrigerating fluid to the tankand exhaust means connected to said discharge passage for drawing theair through the 4said fluid and distributing it thereby under pressureto the various rooms of a building.

5;'A cooling apparatus comprising a tank provided with a refrigeratedfluid, and one i or more air distributor heads inthe bottom of the tankhaving on their top Wall a plurality of relatively small air deliveryopenings, an`d an air inlet opening at the end, the interior capacity ofthe distributor head or heads diminishing progressively in the directionof the flow of the air. j

6. A cooling apparatus comprising a tank providedwith a refrigeratedfluid, and one or more air distributor heads in the bottom of the tankhaving on their top Walls a plurality of relatively small air deliveryopenings, and air inlets leading into both ends of the air distributorhead or heads, the inte- `rior capacity of the distributor head or headsdiminishing from the ends toward the middle.

l7. A cooling apparatus comprising a tank provided with a refrigeratedfluid, and one or more air distributor heads in the bottom of the saidtank provided on their top Walls with a plurality of' relatively smallair delivery openings and having bottom .Walls converging toward the topWall. j

8. A cooling `apparatus comprising a tank provided With a refrigeratedfluid, one or more air distributor heads in the bottom of the said tankprovided on their top Walls with a plurality of relatively small airdelivery rality of relatively small air delivery open-l ings, a manifoldhaving air inlets leading into the said air distributorheads, and baffleplates adjacent to the said air inlets tending to equalize thedistribution of the incoming air to the said air inlets.

10. A cooling apparatus comprising a tank provided With a vrefrigeratedfluid, air distributor heads in the bottom of the said tank provided ontheir top Walls With a plurality of relatively small air deliveryopenings, air inlets leading into the said air distributor heads, airoutlets leading from the top of said tank, and baffle plates adjacent tothe airoutlets adapted to intercept the passage of moisture and toequalize the distribution of the cooled air thereto.

y 1l. A cooling apparatus comprisinga tank provided With a refrigeratedfluid, air distributor heads in the bottom of the said tank provided ontheir top Walls with a plurality of relatively small air deliveryopenings, a manifold having air inlets leading into the said airdistributor heads, baffle plates adjacent to the said air inlets tendingto equal.- ize the distribution of the incoming air to the said airinlets, air outlets leading from the top of said tank, and baille platesadjacent to the air outlets adapted to intercept the passage of moistureand to equalize the distribution of the cooled air thereto.

12. A cooling apparatus comprisinga tank provided With a refrigeratedfluid, air distributor heads in the bottom of the said tank provided ontheir top Walls with a plurality of relatively small air deliveryopenings, air inlets leading into the said air distributor heads, airoutlets from the said cooling tank positioned to draW air `substantiallyunitanks in the main tank surrounded and' bathed by said refrigeratedfluid, eachcontaining a .cooling fluid and an air distributor head inthe bottom, an air inlet for each distributor head, and an air outletfrom the main tank. l

15. A cooling apparatus comp-rising a main tank provided with arefrigerated fluid, a plurality' of individual subsidiary cooling tanksin thev main tank surrounded and bathed by said refrigerated fluid, eachcontaining a cooling fluid, baiile plates above the cooling fluidadapted to intercept moisture and an air distributor head in the bottom,an

air inlet for each distributor head, and an air outlet from the maintank. f

16. A cooling apparatus comprising a tank provided with a refrigeratedfluid, means to force air through said tank and luid,means to convey thecooled air from said tank to a room or rooms of a building for freedischarge therein, and means to convey air from said room or rooms backagain .through said tank and fluid.

17. A cooling apparatus comprising a tank provided with arefrigerated-fluid, an exhaust pump `adapted t0 draw air through saidtank and fluid, a storage tank to which the exhaust pump delivers, meansto convey air from said storage tank to a room or ratus .into the supplypipe of the heating v apparatus, an air delivery outlet from said supplypipe constructed and arranged to permit the free discharge of airtherefrom, and means to c/ut off communication between said supply pipeand the heating connections, and between said supply pipe and the airconnections, whereby either the air cooling and delivering apparatus orthe heating apparatus may be used to the exclusion of the other, incombination with a common supply pipe. l

' 19. The combination with heating apparatus of the kind which includesa supply pipe for the .heating medium, of air cooling apparatus, meansto deliver air from said cooling apparatus into the supply pipe of theheating apparatus, and an air delivery outlet from said supply pipeconstructed and arranged to discharge the cooled air freely into theupper port of the apartment to be cooled, and means to cut offcommunication between said supply pipe and the heat- ,ing connections,and between said supply .pipe and the air connections, whereby eitherthe air cooling and delivering apparatus or the heating apparatus may beused to the exclusion of the other, in combination with a vcommon supplypipe. Y

Signed by us at Newport, N. H., this tenth day of September 1919. -V

CHARLES LEON ROGERS.

MAN LY CHAPMAN ROGERS.

WILLARD W'. BROWN. l

